From b83165dd1f279c2b139401bd9efc075bc89cf060 Mon Sep 17 00:00:00 2001
From: Stephen Blott
Date: Mon, 24 Nov 2014 06:00:44 +0000
Subject: Frames; eliminate Array::rotate (and support large counts).

---
 background_scripts/main.coffee | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'background_scripts/main.coffee')

diff --git a/background_scripts/main.coffee b/background_scripts/main.coffee
index 48b54492..3ec618c9 100644
--- a/background_scripts/main.coffee
+++ b/background_scripts/main.coffee
@@ -284,10 +284,10 @@ BackgroundCommands =
   moveTabRight: (count) -> moveTab(null, count)
   nextFrame: (count,frameId) ->
     chrome.tabs.getSelected(null, (tab) ->
+      frames = frameIdsForTab[tab.id]
       # We can't always track which frame chrome has focussed, but here we learn that it's frameId; so add an
       # additional offset such that we do indeed start from frameId.
-      count += Math.max 0, frameIdsForTab[tab.id].indexOf frameId
-      frames = frameIdsForTab[tab.id]
+      count = (count + Math.max 0, frameIdsForTab[tab.id].indexOf frameId) % frames.length
       frames = frameIdsForTab[tab.id] = [frames[count..]..., frames[0...count]...]
       chrome.tabs.sendMessage(tab.id, { name: "focusFrame", frameId: frames[0], highlight: true }))
 
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